/Engine/Source/Runtime/UMG/Public/Blueprint/WidgetTree.h
The widget tree manages the collection of widgets in a blueprint widget.
class UWidgetTree : public [UObject](API\Runtime\CoreUObject\UObject\UObject), public [INamedSlotInterface](API\Runtime\UMG\Components\INamedSlotInterface)
TArray<TObject...
AllWidgets
TMap<FName,TO...
NamedSlotBindings
Stores the widgets being assigned to named slots, these widgets will be slotted into the named slots of the user widget that owns this widget tree after the user widget is constructed.
TObjectPtr<UWi...
RootWidget
The root widget of the tree